/diy/ - Do It Yourself

Previous chapter: >>1669514

>RULES
0. Electrics ≠ electronics. Appliances/mains stuff to /qtddtot/ or /sqt/. PC assembly to >>>/g/.
1. Do your own homework. Search web first. Re-read all documentation/datasheets related to your components/circuits. THEN ask.
2. Pics > 1000 words. Post relevant schematic/picture/sketch/9001.5 hours in MS Paint with all part numbers/values/etc. when asking for help. Focus/lighting counts.
2.5. State your skill level if asking an open-ended question.
3. Read posts fully. Solve more problems than you create.
4. /ohm/ is an anonymous, non-smoking general.

>I'm new to electronics, where to get started?
It is an art/science of applying principles to requirements.
Find problem, learn principles, design and verify solution, build, test, post results, repeat

>Project ideas:
http://adafruit.com
http://instructables.com/tag/type-id/category-technology/
http://makezine.com/category/electronics/

>Principles (by increasing skill level):
Mims III, Getting Started in Electronics
Platt, Make: Electronics
Geier, How to Diagnose & Fix Everything Electronic
Kybett & Boysen, All New Electronics Self-Teaching Guide
Scherz & Monk, Practical Electronics for Inventors
Horowitz and Hill, The Art of Electronics

>Design/verification tools:
LTSpice
falstad.com/circuit/circuitjs.html
NI Multisim
CircuitLab
iCircuit for Macs
KiCAD (pcb layout software, v5+ recommended)

>Components/equipment:
Mouser, Digi-Key, Arrow, Newark, LCSC (global)
RS Components (Europe)
eBay/AliExpress sellers, especially good for component assortments/sample kits (caveat emptor)
Local independent electronics distributors
ladyada.net/library/procure/hobbyist.html

>Related YouTube channels:
mjlorton
jkgamm041
eevblog
EcProjects
greatscottlab
Photonvids
sdgelectronics
BigClive

>Li+/LiPo batteries
Read this exemplary resource first: https://www.robotshop.com/media/files/pdf/hyperion-g5-50c-3s-1100mah-lipo-battery-User-Guide.pdf
>I have junk, what do?
Take it to the recycler.

>>1280227
>coz they're not actually about teaching you practical stuff
Disagree. Those contrived, convoluted resistor networks are, like most algebra classes, about teaching you that everything can be solved by methodical application of simple rules, should you need to. It makes practice seem relatively easy.

Kirchhoff's Ghost - trapped in the Matrix

Happy new year h/ohm/os.

I noticed that there are some mistakes in my circuit: Wrong fuse T1, Capacitors labled in wrong order, tubes (V1/2/3 are ECC83/12AX7 and V4 and V5 are EL84) and diodes miss values..

Ignore those obvious mistakes of mine

>>815873
I hope im just stating the obvious but have you tried to find a fuse schematic and just pull the fuse for the security system? Will this work?

Also, at this point I would just wire a push button ignition. Completely bypass that security system. Make sure your door locks are good.

>>716305
compare early editions of the book to latest editions. if its still the same then its probably right.

captcha : 555 timzu

>>651486
thank you sir.

i've been working with electronics for four or so years now. but i've never actually learned to design pcb's. we used proteus in school many years ago but i didn't pay attention and the teachers we horribly inept.
iv'e found sparkfun and hackaday's tutorials for eagle cad somewhat helpful.
you guys know of other good resources for eagle? tuts or libraries?

my fist project will probably a simple cpld breakout 5x10cm board with jtag and regulators.. pretty simple.
thing is that xilinx's own library seems weird and making a device from scratch with the right footprint is something i think i'd fuck up.
couldn't i just copy a device with the default vqp44 footprint and edit its pins and name/value to suit my needs instead of making a footprint from scratch?

just general noob tips would be appreciated also^^
thanks dudes.

also. which service do you use? i was thinking id try dirtypcbs.com

I'd start with this, but substitute all the switches with guitar pedals so it's easier to mount on to your quad-rotor shipping container. You should be able to find the bridged rectumfrier at Harbor Freight.

>>559071
all day. erry day nigga

>>252553
yes... a program better than ms paint that is easy to use

thanks

>>226450
yes. i tried that and a few other things but this was the only way

>>226432
Oh no...the 4chan people have my phone number!!! lol
I'm not racist by a longshot but, good god, Mike's such a jew bastard. Try metro. Greg's pretty cool. What kind of stuff do u have to sell?

my favorite

>>163499
>omit this if you're a wimp

so funny

couldn't resist